LAS VEGAS — Large companies have been flocking to the “cloud” to store data and run computing applications because it gives them spending flexibility and keeps them from running unwieldy data centers of their own. But Andy Jassy, the CEO of Amazon Web Services, the world’s largest cloud computing provider, said there’s another, even more compelling reason: newly discovered abilities to create and deploy software. “The cloud and AWS made developers feel like they were equipped with superpowers,” Jassy said in a keynote speech at the company’s re:Invent conference, which has gathered 32,000 developers and cloud advocates in this gambling and entertainment mecca. “The cloud and AWS gives builders capabilities that they never had before.” Jassy’s comments came amidst a series of announcements that underscore how the business of renting…